Convert variable names between camelCase, snake_case, and kebab-case when switching between languages.
Case converter
Paste your text and pick a case format to convert it instantly — no button needed.
Case Converter
About this tool
Free online case converter — instantly convert text to lowercase, uppercase, title case, sentence case, camelCase, snake_case, or kebab-case.
No signup requiredRuns in your browserInstant results
Fix inconsistent casing in copy, headlines, or content before publishing.
Quickly format text to title case for headings or sentence case for body content.
Why use this tool?Key benefits
Works instantly
Paste your input and get the result immediately — no page reload, no waiting, no configuration needed to get started.
Your data stays private
All Case Converter processing runs locally in your browser. Nothing you paste is sent to a server or stored anywhere.
Focused workspace
A dedicated page for Case Converter means a clean, distraction-free workspace you can bookmark and come back to anytime.
Frequently asked questionsCommon questions answered
These answers explain common case converter tasks, expected input formats, and edge cases so both visitors and search engines can understand what this tool does.
What is title case?
Title case capitalises the first letter of each word. It is commonly used for headings, article titles, and proper nouns.
What is sentence case?
Sentence case capitalises only the first letter of the first word and leaves the rest lowercase, matching standard sentence formatting.
What is camelCase?
camelCase removes spaces and capitalises the first letter of each word except the first. It is widely used for variable and function names in JavaScript and other languages.
What is snake_case?
snake_case replaces spaces with underscores and lowercases everything. It is common in Python, database column names, and file names.
What is kebab-case?
kebab-case replaces spaces with hyphens and lowercases everything. It is standard for CSS class names, HTML attributes, and URL slugs.